python3Packages.plover: reference to python3Packages.plover_5 instead of python3Packages.plover_4 (#517601)

pkgs/by-name/pl/plover/package.nix

@@ -3,7 +3,7 @@
   config,
   python3Packages,
   # For aliases
-  plover,
+  plover_4,
 }:
 python3Packages.toPythonApplication python3Packages.plover
 # Aliases to now-dropped plover.stable and plover.dev
@@ -11,7 +11,8 @@ python3Packages.toPythonApplication python3Packages.plover
 # TODO(@ShamrockLee): remove after Nixpkgs 25.11 EOL
 // lib.optionalAttrs (config.allowAliases && !(lib.oldestSupportedReleaseIsAtLeast 2605)) {
   dev =
-    lib.throwIf (lib.oldestSupportedReleaseIsAtLeast 2511) "plover.dev was renamed. Use plover instead."
-      plover; # Added 2026-04-26
+    lib.throwIf (lib.oldestSupportedReleaseIsAtLeast 2511)
+      "plover.dev was renamed. Use plover, plover_5, or plover_4 instead."
+      plover_4; # Added 2026-05-07
   stable = throw "plover.stable was renamed. Use plover instead."; # Added 2022-06-05; updated 2026-04-26
 }

pkgs/top-level/python-packages.nix

@@ -12812,13 +12812,16 @@ self: super: with self; {
 
   plotpy = callPackage ../development/python-modules/plotpy { };
 
+  # Use Plover 5 as Plover 4 depends on setuptool's pkg_resources to discover plugins,
+  # which the setuptools upstream deprecated at version 81.0.0 and removed at version 82.0.0
+  # Plover 5 has addressed this issue by switching to importlib.meta.distributions()
+  #
+  # NOTE:
   # Plover 5 moves from PyQt5 to PySide6,
-  # which is a backward-incompatible change to praphical plugins.
-  # Use Plover 4 for now (2026-04-26),
-  # as the upstream still warns about this in every Plover 5 release,
+  # which is a backward-incompatible change to graphical plugins.
   # List of unsupported plugins:
   # https://github.com/opensteno/plover_plugins_registry/blob/master/unsupported.json
-  plover = plover_4;
+  plover = plover_5;
 
   plover-dict-commands = callPackage ../development/python-modules/plover-dict-commands { };